CN110994423A - Intelligent ring main unit and assembling method thereof - Google Patents
Intelligent ring main unit and assembling method thereof Download PDFInfo
- Publication number
- CN110994423A CN110994423A CN201911282840.0A CN201911282840A CN110994423A CN 110994423 A CN110994423 A CN 110994423A CN 201911282840 A CN201911282840 A CN 201911282840A CN 110994423 A CN110994423 A CN 110994423A
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- China
- Prior art keywords
- secondary control
- outer box
- box body
- control unit
- control circuit
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 17
- 239000010935 stainless steel Substances 0.000 claims abstract description 17
- 238000001746 injection moulding Methods 0.000 claims abstract description 14
- 239000000779 smoke Substances 0.000 claims description 8
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses an intelligent ring main unit and an assembly method thereof, wherein the assembly method comprises the following steps: step S1, sealing the primary charging unit in a stainless steel gas box filled with SF6 gas, and sealing the stainless steel gas box in an outer box body; step S2, mounting a secondary control unit on the top of the outer box body, wherein a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is mounted in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface; and step S3, the motor is arranged in the outer box body, and the anode and the cathode of the motor are connected with the secondary control unit. The invention can effectively avoid air from entering the shell to generate condensation, and also effectively avoid the problems of water inlet and ash inlet of a secondary control circuit.
Description
Technical Field
The invention relates to the technical field of power systems, in particular to an intelligent ring main unit and an assembling method thereof.
Background
The Ring Main Unit is a group of transmission and distribution electrical equipment (high-voltage switch equipment), which is installed in a metal or non-metal insulating cabinet body or made into an assembled interval Ring Main power supply Unit, and the core part of the Ring Main Unit adopts a load switch and a fuse, so that the Ring Main Unit has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like.
The intelligent ring main unit mainly comprises a primary electrification unit (comprising a high-voltage electrification part), a motor and a secondary control unit (detecting, controlling and protecting current, voltage, signals and the like). The opening and closing of the intelligent ring main unit are realized through the positive and negative rotation of the motor, and the positive and negative rotation of the motor is determined by the secondary control unit. Therefore, the design of each component of the secondary control unit is very important, and how to improve the timeliness, reliability and sensitivity of the secondary control unit is also more demanding. But the existing ring main unit is not good in sealing, so that a primary electrified part is affected with damp, meanwhile, a secondary control unit is easy to condense, and the reliability of the ring main unit is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent ring main unit and an assembling method thereof, so as to effectively avoid the problems that a primary electrified unit is affected with damp and a secondary control unit is easy to be condensed, and improve the reliability of the ring main unit.
In order to solve the above technical problem, an embodiment of the present invention provides an intelligent ring main unit, including: a primary charging unit, a motor, a secondary control unit, and an outer case,
the primary charging unit is sealed in a stainless steel gas box filled with SF6 gas, and the stainless steel gas box is sealed in the outer box body;
the secondary control unit is arranged at the top of the outer box body, a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is arranged in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface;
the motor is arranged in the outer box body, and the positive pole and the negative pole of the motor are connected with the secondary control unit.
Furthermore, sealing rubber is arranged at the opening of the outer box body, and a rain-proof eave is arranged on the outer box body.
Further, a smoke alarm is arranged in the outer box body and electrically connected with the secondary control circuit.
Further, a temperature and humidity sensor is arranged in the outer box body and electrically connected with the secondary control circuit.
Further, a heater is arranged in the outer box body.
The embodiment of the invention also provides an assembly method of the intelligent ring main unit, which comprises the following steps:
step S1, sealing the primary charging unit in a stainless steel gas box filled with SF6 gas, and sealing the stainless steel gas box in an outer box body;
step S2, mounting a secondary control unit on the top of the outer box body, wherein a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is mounted in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface;
and step S3, the motor is arranged in the outer box body, and the anode and the cathode of the motor are connected with the secondary control unit.
Further, the assembling method further comprises: sealing rubber is arranged at the opening of the outer box body, and a rain-proof eave is arranged on the outer box body.
Further, the assembling method further comprises: and a smoke alarm is arranged in the outer box body and is electrically connected with the secondary control circuit.
Further, the assembling method further comprises: and a temperature and humidity sensor is arranged in the outer box body and is electrically connected with the secondary control circuit.
Further, the assembling method further comprises: a heater is provided in the outer case.
Compared with the prior art, the invention has the advantages that the sealing rubber and the rain-proof brim are arranged at the opening of the outer box body, so that the inner part of the outer box body is prevented from being affected with damp, and the primary charging unit is sealed in the stainless steel air box filled with SF6 gas, so that the reliability of the primary charging unit is improved; the secondary control circuit through with secondary control unit installs in the shell through the sealed mode of moulding plastics, and secondary control circuit's lead-out wire draws forth through the interface of moulding plastics for whole secondary control unit is one whole, is about to mould plastics shell and secondary control circuit together, avoids the air to enter into the shell effectively and produces the condensation, has also avoided secondary control circuit intake water and advance grey problem effectively simultaneously.
Drawings
Fig. 1 is a schematic flow chart of an assembly method of an intelligent ring main unit according to a second embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides an intelligent ring main unit, including: a primary charging unit, a motor, a secondary control unit, and an outer case;
the primary charging unit is sealed in a stainless steel gas box filled with SF6 gas, and the stainless steel gas box is sealed in the outer box body;
the secondary control unit is arranged at the top of the outer box body, a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is arranged in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface;
the motor is arranged in the outer box body, and the positive pole and the negative pole of the motor are connected with the secondary control unit.
Specifically, the outer box body is made of a stainless steel material with the thickness of more than or equal to 2mm and the performance of not less than S304, so that the outer box body has enough mechanical strength and cannot be deformed or damaged during hoisting, transportation and installation. The outer box body is treated by adopting an anti-corrosion coating process, the coating is uniform and consistent in thickness, the coating has firm adhesive force, obvious rust spots are prevented from appearing for a long time, and the anti-sticking small advertisement function is realized. The inclination of outer box top cap is not less than 10 degrees and is equipped with rain-proof eaves. The opening angle of the door of the outer box body is larger than 105 degrees, and a positioning device is arranged; the door is provided with a built-in lock and an external lock hole. The door lock has the functions of theft prevention, rust prevention and blockage prevention. The inside insulating layer and the vent of still being provided with of outer box prevents that inside temperature from rising. Sealing rubber is arranged at the opening of the outer box body. A smoke alarm and a temperature and humidity sensor are arranged in the outer box body. The smoke alarm is electrically connected with the secondary control circuit, and the secondary control circuit controls the motor according to the detection information of the smoke alarm; the temperature and humidity sensor is electrically connected with the secondary control circuit, and the secondary control circuit controls the motor according to the detection information of the temperature and humidity sensor. The motor is arranged in the outer box body, and the positive pole and the negative pole of the motor are connected in series in the secondary control unit to realize on-off control.
The heater is arranged in the outer box body, the temperature in the outer box body is reduced through heating of the heater, and the reliability of the primary control unit is better improved.
It can be understood that, when the intelligent ring main unit of the present embodiment is assembled, a specific installation position can be selected accordingly according to the aforementioned description requirements for each component.
In the embodiment, the current and the voltage on the distribution line and the switch line of the primary electrified unit are collected through the current transformer and the voltage transformer, and the collected current and voltage are sent to the secondary control line; the secondary control circuit judges the fault according to the detected information (adopting zero sequence current and zero sequence voltage), and controls the motor according to the judgment result, thereby realizing the control of the primary electrified unit.
Correspondingly to the first embodiment of the present invention, the second embodiment of the present invention provides an assembly method of an intelligent ring main unit, as shown in fig. 1, the assembly method includes:
step S1, sealing the primary charging unit in a stainless steel gas box filled with SF6 gas, and sealing the stainless steel gas box in an outer box body;
step S2, mounting a secondary control unit on the top of the outer box body, wherein a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is mounted in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface;
and step S3, the motor is arranged in the outer box body, and the anode and the cathode of the motor are connected with the secondary control unit.
Further, the assembling method further comprises: sealing rubber is arranged at the opening of the outer box body, and a rain-proof eave is arranged on the outer box body.
Further, the assembling method further comprises: and a smoke alarm is arranged in the outer box body and is electrically connected with the secondary control circuit.
Further, the assembling method further comprises: and a temperature and humidity sensor is arranged in the outer box body and is electrically connected with the secondary control circuit.
Further, the assembling method further comprises: a heater is provided in the outer case.
As can be seen from the description of the above embodiment, the embodiment of the invention has the beneficial effects that the sealing rubber and the rain-proof eaves are arranged at the opening of the outer box body, so that the inner part of the outer box body is prevented from being affected with damp, and the primary charging unit is sealed in the stainless steel air box filled with SF6 gas, so that the reliability of the primary charging unit is improved; the secondary control circuit through with secondary control unit installs in the shell through the sealed mode of moulding plastics, and secondary control circuit's lead-out wire draws forth through the interface of moulding plastics for whole secondary control unit is one whole, is about to mould plastics shell and secondary control circuit together, avoids the air to enter into the shell effectively and produces the condensation, has also avoided secondary control circuit intake water and advance grey problem effectively simultaneously.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (10)
1. An intelligent ring main unit, comprising: a primary charging unit, a motor, a secondary control unit and an outer case,
the primary charging unit is sealed in a stainless steel gas box filled with SF6 gas, and the stainless steel gas box is sealed in the outer box body;
the secondary control unit is arranged at the top of the outer box body, a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is arranged in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface;
the motor is arranged in the outer box body, and the positive pole and the negative pole of the motor are connected with the secondary control unit.
2. The intelligent ring main unit as claimed in claim 1, wherein a sealing rubber is disposed at the opening of the outer box, and a rain-proof eaves is disposed on the outer box.
3. The intelligent ring main unit as claimed in claim 1, wherein a smoke alarm is provided in the outer box body and electrically connected to the secondary control line.
4. The intelligent ring main unit as claimed in claim 1, wherein a temperature and humidity sensor is disposed in the outer box body and electrically connected to the secondary control circuit.
5. The intelligent ring main unit as claimed in claim 1, wherein a heater is disposed in the outer box.
6. An assembling method of an intelligent ring main unit is characterized by comprising the following steps:
step S1, sealing the primary charging unit in a stainless steel gas box filled with SF6 gas, and sealing the stainless steel gas box in an outer box body;
step S2, mounting a secondary control unit on the top of the outer box body, wherein a shell is arranged outside the secondary control unit, a secondary control circuit of the secondary control unit is mounted in the shell in an injection molding sealing mode, and an outgoing line of the secondary control circuit is led out through an injection molding interface;
and step S3, the motor is arranged in the outer box body, and the anode and the cathode of the motor are connected with the secondary control unit.
7. The method of assembling of claim 6, further comprising: sealing rubber is arranged at the opening of the outer box body, and a rain-proof eave is arranged on the outer box body.
8. The method of assembling of claim 6, further comprising: and a smoke alarm is arranged in the outer box body and is electrically connected with the secondary control circuit.
9. The method of assembling of claim 6, further comprising: and a temperature and humidity sensor is arranged in the outer box body and is electrically connected with the secondary control circuit.
10. The method of assembling of claim 6, further comprising: a heater is provided in the outer case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282840.0A CN110994423A (en) | 2019-12-13 | 2019-12-13 | Intelligent ring main unit and assembling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911282840.0A CN110994423A (en) | 2019-12-13 | 2019-12-13 | Intelligent ring main unit and assembling method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994423A true CN110994423A (en) | 2020-04-10 |
Family
ID=70093390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911282840.0A Pending CN110994423A (en) | 2019-12-13 | 2019-12-13 | Intelligent ring main unit and assembling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110994423A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524011U (en) * | 2012-04-27 | 2012-11-07 | 吉林省金冠电气股份有限公司 | Fully-sealed wiring terminal box of gas-insulated switch cabinet |
| CN207719710U (en) * | 2018-01-31 | 2018-08-10 | 南京鼎淳电气有限公司 | Air insulation ring main unit |
| CN109687297A (en) * | 2018-11-30 | 2019-04-26 | 金华送变电工程有限公司 | A kind of ring network cabinet dehumidification device |
| CN209419057U (en) * | 2019-03-14 | 2019-09-20 | 上海埃而生电气股份有限公司 | A kind of low-voltage distribution box |
-
2019
- 2019-12-13 CN CN201911282840.0A patent/CN110994423A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202524011U (en) * | 2012-04-27 | 2012-11-07 | 吉林省金冠电气股份有限公司 | Fully-sealed wiring terminal box of gas-insulated switch cabinet |
| CN207719710U (en) * | 2018-01-31 | 2018-08-10 | 南京鼎淳电气有限公司 | Air insulation ring main unit |
| CN109687297A (en) * | 2018-11-30 | 2019-04-26 | 金华送变电工程有限公司 | A kind of ring network cabinet dehumidification device |
| CN209419057U (en) * | 2019-03-14 | 2019-09-20 | 上海埃而生电气股份有限公司 | A kind of low-voltage distribution box |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |